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To further improve the safety of red-light cameras, consider that almost all rear-end collisions are caused by people tailgating. If each red-light camera were turned into a combination red-light and speed camera, people would slow down when approaching intersections, so someone slamming on their brakes at the last minute would be less likely to be hit from behind.

Emphasis mine.

I don't think you were saying that rear-end collisions are the fault of the car in front, even when they brake suddenly, but I think it's important to say that any rear-end collision is the fault of the car behind. It doesn't matter how sharply the car in front brakes, you should never be so close that you can't also stop safely. Suppose that instead of a red light there's a child running into the road; the car ahead may brake very sharply indeed, but if you're behind and you give them another push you might just make the difference between near-miss and tragedy. Tailgating needs to be treat more severely than speeding if you ask me, or at least enforced... at all.

What about the driver? Drones don't have those. Trucks may be cheap, but they're useless without a person to pick up each package and walk it to the door.

I picture a hybrid of both: a truck can deliver heavy items and act as a pickup and recharge point for a number of drones dealing with the small ones. This way the number of drops for the driver is reduced and the drones' problem of range is side-stepped.

The figure given in parliament yesterday was around ~2500 people/couples who could be helped by this procedure. It's all there in Hansard, along with the list of who voted which. No prizes for guessing which side the Rees-Mogg gang were on.

All land should be rented, never bought, for basically the annual property taxes.

That's just silly. If something can't be bought then it isn't worth anything, because things are only worth what they can be traded for.

Just how can you own land anyway? You can certainly go back quite a long time in terms of trades and sales but sooner or later you get to a point where the land was seized by the man with the bigger gun/spear/stick/rock.

I imagine it's because the relays are either in the engine compartment or hidden behind so much interior trim that they're inaudible. Either way a separate buzzer would be needed. In older cars the flasher unit was easily accessible and there wasn't nearly as much stuff behind the dash..